Answer:
r = 5.94 10⁻² m
Explanation:
The magnetic force is given by the ratio
F =q v x B
The bold indicate vectors and the vector product determines that the force is perpendicular to the other two vectors, so the modulus of the velocity does not change, but its direction, therefore the acceleration in Newton's second law is centripetal
F = m a
The magnitude of the force is
F = q v B sin θ
The centripetal acceleration is
a = v² / r
Let's replace
q v B sin θ = m v² / r
r = m v / (q B sin θ)
Let's calculate
r = 9.11 10⁻³¹ 4.8 10⁶ / (1.60 10⁻¹⁹ 9.2 10⁻⁴ sin 30)
r = 5.94 10⁻² m
Answer: In particular, electron degeneracy pressure is what supports white dwarfs against gravitational collapse, and the Chandrasekhar limit (the maximum mass a white dwarf can attain) arises naturally due to the physics of electron degeneracy.
Explanation:
